Thanks Uwe. Michael
2012/2/11 Uwe Ligges <[email protected]>: > > > On 10.02.2012 04:53, R. Michael Weylandt wrote: >> >> Consider the following in R 2.14.1 (seems to still be the case in Rdevel): >> >> x<- matrix(1:9, 3) >> colnames(x) # NULL as expected >> colnames(x, do.NULL = TRUE) # NULL -- since we didn't change the default >> colnames(x, do.NULL = FALSE) # "col1" "col2" "col3" >> >> This doesn't really seem to square with the documentation which reads: >> >> do.NULL: logical. Should this create names if they are ‘NULL’? >> >> The details section expounds and says: >> >> If ‘do.NULL’ is ‘FALSE’, a character vector (of length ‘NROW(x)’ >> or ‘NCOL(x)’) is returned in any case, prepending ‘prefix’ to >> simple numbers, if there are no dimnames or the corresponding >> component of the dimnames is ‘NULL’. >> >> But I have to admit that I don't really get it. (The interpretation of >> the docs; I understand the functionality) Could someone enlighten me? >> Given what the details section says (and the behavior of the function >> is), I'd expect something more like: >> >> do.NULL: logical. Is NULL an acceptable return value? If FALSE, >> column names derived from prefix are returned. > > > > Changed to > > \item{do.NULL}{logical. If \code{FALSE} and names are \code{NULL}, names are > created.} > > >> Michael >> >> PS -- In my searching, I think the link to the svn on the developer >> page (http://developer.r-project.org/) is wrong: clicking it takes one >> to what appears to be the same page: am I incorrect in assuming it >> should link to http://svn.r-project.org/R for the current svn? > > > > I think you followed the link to the svn sources of that developer page > (rather than the software R). > > Uwe > > >> ______________________________________________ >> [email protected] mailing list >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide >> http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
